Improvement in vehicle torsion-springs



P. M. GHAPIN & J. GERSBAOHER. Vehicle Torsion-Spring.

No. 206,703. Patented Aug. 6.1878.

WITNESSES INVENTOR:

( dl/aw My 7 W/QM m af/ BY E ATTORNEYS.

N.PETERS. PHOTO-LITHOGRAPHER. WASHINGTON. D C

UNITED STATES PATENT OFFICE.

FRANK M. CIIAPIN AND JOSHUA GERSBAUHER, OF CUFFEYS COVE, CAL.

IMPROVEMENT IN VEHICLE TORSION-SPRINGS.

Specification forming part of Letters Patent No. 206,703, dated August6, 1 7?,- application filed May 8, 1879.

To all whom 1' b may concern:

Be it known that we, FRANK MARION GHA- PIN and JOSHUA GERSBACHER, ofGuffeys (love, in the county of Mendocino and State of California, haveinvented a new and useful Improvement in Torsion VVagonSprin gs, ofwhich the following is a specification:

Figure l is an under-side View of the body and part of the running-gearof a wagon to which our improvement has been applied. Fig. 2 is across-section of the same, taken through the line 00 .90, Fig. 1.

Similar letters of reference indicate correspondin g parts.

The object of this invention is to furnish springs for wagons whichshall be simple in construction, strong, and durable, and at the sametime light and elastic, n-oducing an easy riding wagon.

A represents the head-block, and 13 the rear axle, of the running-gearof the wagon. To the upper sides of the head-block A and axle B areattached bars 0, the end parts of which project and are curved upwardand inward, as shown in Fig. 2, and to their upper ends are pivoted, orfrom them are hung, the couplingblocks 1).

The ends of the bars 0 have shoulders formed upon them for the side ofthe coupling-blocks D to strike against to prevent the saidcoupling-blocks from swinging too far inward.

E are four steel rods, which are secured to the side parts of the bottomof the wagonbody, two upon each side and in line with each other. Theinner ends, a, of the rods E are bent outward at right angles, and theends of the arms thus formed are bent upward at right angles, and areinserted in holes in the middle crossbarof the wagon-body. The rods Eare secured to the said central cross-bar at or near their angles bybolts, screws, clips, or other suitable means that will hold them.firmly in place. The rods E pass through keepers or staples attached tothe cross-bars of the wagon-body, and their forward ends at the forwardends of the said wagon-body are bent outward at right angles andinclined downward, forming arms 0 The ends of the arms c are again bentat right angles to enter holes in the coupling-blocks D, as shown inFigs. 1 and 2.

By this construction as weight is applied to the wagon-body the rods Iwill be turned or twisted so as to give elasticity to the saidwagon-body, the inner ends of the said rods being stationary.

To are aware that it is not new to combine single-shanked spring-bars sothat they will act together or singly according to the load; but

What we claim is- 1. A hanger for torsion-springs having at its end astop to limit the movement thereof, as shown and described.

2. The torsion-spring in combination with the hanger, having an end orshoulder to limit the upward motion of spring, as specified.

FRANK MARION OHAPIN. JOSHUA GERSBAGHER. Witnesses J AS. HENNESSY, ALBERTWARNER.

